ArticlePublic health nutrition2015
FFQ for the adult population of the capital of Ecuador (FFQ-Quito): development, reliability and validity.
Article in Public health nutrition, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A meta-analysis of the reproducibility of food frequency questionnaires in nutritional epidemiological studies.The international journal of behavioral nutrition and physical activity · 2021Pooled it
- Reproducibility and Validity of a Food Intake Survey Developed for Implementation via Digital Health for Patients With or at Risk for Cardiovascular Disease.Circulation reports · 2025Article
- Evaluation of the Reliability and Validity of a Food Frequency Questionnaire Using Three-Day 24-Hour Dietary Recalls: A Study in Fujian, China.Nutrients · 2025Article
- Validation of NOVA 27 ultra-processed food screener: adaptation and performance in Ecuador.Public health nutrition · 2025Article
- Development and Validation of a Short Food Frequency Questionnaire (SH-FFQ) in Iranian Adults: A Prospective Longitudinal Study.International journal of preventive medicine · 2024Article
- Validity and reliability of a semi-quantitative food frequency questionnaire in groups at high risk for cardiovascular diseases.Nutrition journal · 2022Article
- Validation and reproducibility of a FFQ focused on pregnant women living in Northeastern Brazil.Public health nutrition · 2021Article
- A culture-sensitive semi-quantitative FFQ for use among the adult population in Nairobi, Kenya: development, validity and reproducibility.Public health nutrition · 2021Article
- Dietary patterns of Chinese women of childbearing age during pregnancy and their relationship to the neonatal birth weight.Nutrition journal · 2020Article
- Validity and reliability of a dish-based semi-quantitative food frequency questionnaire for assessment of energy and nutrient intake among Iranian adults.BMC research notes · 2020Article
- Design and validation of a food frequency questionnaire (FFQ) for the nutritional evaluation of food intake in the Peruvian Amazon.Journal of health, population, and nutrition · 2019Article
- Validity of Nutrient Intakes Derived from an Internet Website Dish-Based Dietary Record for Self-Management of Weight among Japanese Women.Nutrients · 2017Article
- Development, validity, and reliability of a food frequency questionnaire for antioxidants in elderly Iranian people.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2016Article
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3 authors.
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Abstract
objectiveTo assess the reliability and validity of a semi-quantitative FFQ designed to evaluate the usual nutrient intake of adults in Quito, Ecuador.
designDietary data using 24 h recalls (24hR) were used to design a list of commonly consumed foods. The relative validity of a 111-item FFQ was evaluated by comparing nutrient intakes against three non-consecutive 24hR. All nutrients were energy-adjusted. Reliability was assessed using two FFQ (FFQ1 and FFQ2) and assessed by the intra-class correlation coefficient. The comparisons between the FFQ and the 24hR were assessed by the de-attenuated Pearson correlation coefficient, weighted kappa and by Bland-Altman plots.
settingQuito, Ecuador. SUBJECTS: Overall, 345 adults were enrolled in the present study. Two hundred and fifty participated in FFQ development and ninety-five participated in the FFQ validity and reliability.
resultsThe FFQ produced higher energy and nutrient intakes. Reliability correlation coefficients after adjusting for energy ranged from 0·62 to 0·88 for protein and Ca, respectively. For the validity study, energy-adjusted and de-attenuated correlation coefficients between the questionnaire and the 24hR ranged from 0·21 for fat to 0·65 for Ca. Only 4 % of the participants were grossly misclassified and 46 % had weighted kappa higher than 0·42. The Bland-Altman plot showed a constant bias with a tendency to increase according to the intake level.
conclusionsThe FFQ showed reasonably good relative validity and reliable measurements, especially for nutrients considered protective and risk markers of non-communicable disease, and can be used to assess usual nutrient intake in this population.
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